Propositional Dynamic Logic in Lean 4

Module dependency overview

(Run make dependencies.svg to update this.)

https://malv.in/2020/borzechowski-pdl - the German original proof by Borzechowski (1988) and the English translation (2020)
https://github.com/m4lvin/tablean - previous project for Basic Modal Logic, in Lean 3. Code from there has been ported to Lean 4 and is included here in the Bml folder.
https://w4eg.de/malvin/illc/tapdleau - tableaux prover implemented in Haskell, useful to run examples.

Name		Name	Last commit message	Last commit date
Latest commit History 588 Commits
.devcontainer		.devcontainer
.docker/gitpod		.docker/gitpod
.github/workflows		.github/workflows
.vscode		.vscode
Bml		Bml
Pdl		Pdl
Unused		Unused
.gitignore		.gitignore
.gitpod.yml		.gitpod.yml
Bml.lean		Bml.lean
LICENSE		LICENSE
Makefile		Makefile
Pdl.lean		Pdl.lean
README.md		README.md
dependencies.svg		dependencies.svg
lake-manifest.json		lake-manifest.json
lakefile.lean		lakefile.lean
lean-toolchain		lean-toolchain